| **Goodwill And Other Intangible Assets (Tables)**                                                 | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
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| **Goodwill and Intangible Assets Disclosure [Abstract]**                                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Schedule Of Changes In Carrying Amount Of Goodwill                                                | The changes in the carrying amount of goodwill for each of the Company’s reportable segments (see Note 14) for the six months ended June 29, 2013 were as follows (in millions):  IESD CATD TotalBalance at December 29, 2012$1,229 $1,732 2,961Spinal Modulation, Inc.117 — 117CardioMEMS, Inc.84 — 84Foreign currency translation and other(13) (10) (23)Balance at June 29, 2013$1,417 $1,722 3,139                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Schedule Of Gross Carrying Amount Of Other Intangible Assets And Related Accumulated Amortization | The following table provides the gross carrying amount of other intangible assets and related accumulated amortization (in millions): June 29, 2013 December 29, 2012 GrossCarryingAmount AccumulatedAmortization GrossCarryingAmount AccumulatedAmortizationDefinite-lived intangible assets:       Purchased technology and patents$934 $354 $947 $336Customer lists and relationships22 15 57 36Trademarks and tradenames22 11 22 10Licenses, distribution agreements and other4 2 6 4 $982 $382 $1,032 $386Indefinite-lived intangible assets:       Acquired IPR&D$228   $109  Trademarks and tradenames49   49   $277   $158   |

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| - Definition
Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275
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| - Definition
Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267
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